Answers

Add 72/42 and 40/32

1^st number: 1 30/42, 2^nd number: 1 8/32

72/42 + 40/32 is 83/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 32 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 42 × 16 = 672,
   72/42 = 72 × 16/42 × 16 = 1152/672
3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
   40/32 = 40 × 21/32 × 21 = 840/672
4. Add the two like fractions:
   1152/672 + 840/672 = 1152 + 840/672 = 1992/672
5. 1992/672 simplified gives 83/28
6. So, 72/42 + 40/32 = 83/28
   In mixed form: 227/28

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